Theoretical examination of quantum coherence in a photosynthetic system at physiological temperature
Open accessAbstract
The observation of long-lived electronic coherence in a photosynthetic pigment–protein complex, the Fenna–Matthews–Olson (FMO) complex, is suggestive that quantum coherence might play a significant role in achieving the remarkable efficiency of photosynthetic electronic energy transfer (EET), although the data were acquired at cryogenic temperature [Engel GS, et al. (2007) Evidence for wavelike energy transfer through quantum coherence in photosynthetic systems. Nature 446:782–786]. In this paper, the spatial and temporal dynamics of EET through the FMO complex at physiological temperature are investigated theoretically. The numerical results reveal that quantum wave-like motion persists for several hundred femtoseconds even at physiological temperature, and suggest that the FMO complex may work as a rectifier for unidirectional energy flow from the peripheral light-harvesting antenna to the reaction center complex by taking advantage of quantum coherence and the energy landscape of pigments tuned by the protein scaffold. A potential role of quantum coherence is to overcome local energetic traps and aid efficient trapping of electronic energy by the pigments facing the reaction center complex.
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Non-equilibrium exchanges between system and environment can have considerable influence on the system dynamics.
“This and other non-equilibrium exchanges between system and environment can have considerable influence on the system dynamics [28-35], influence the direction of energy transfer [28] and may even lead to the generation of long-lived quantum coherence in the system [28, 36-38].”
From Vibrations, quanta and biology (2013) · cites this paper as [29]
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- Authors
- Ishizaki, A., & Fleming, G. R.
- Affiliations
- Lawrence Berkeley National Laboratory (US)
- Corresponding author
- Fleming, Graham R.
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2009-10-13
- Volume
- 106
- Issue
- 41
- Pages
- 17255-17260
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC2762676
- OpenAlex
- W2127296814
- Cited by
- 891
- References
- 45
- Citations by year
- 2026: 33 · 2025: 37 · 2024: 50 · 2023: 22 · 2022: 41 · 2021: 41 · 2020: 45 · 2019: 51 · 2018: 44 · 2017: 52 · 2016: 66 · 2015: 66 · 2014: 68 · 2013: 63 · 2012: 85
- FWCI
- 39.41
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- U.S. Department of Energy (DE-AC03–76SF000098, -AC02-05CH11231, DE-AC03-?, 05CH11231, DE AC02 05CH11231, DE-AC02-)
- Office of Science (DEAC02–05CH11231, AC02-05CH11231, DE-AC02)
- Japan Society for the Promotion of Science
- Basic Energy Sciences (DE-AC02, DE-AC02-05CH11231., DE-AC03-76SF000098, AC02–05CH11231)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Spectroscopy and Quantum Chemical Studies
- Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Photochemistry and Electron Transfer Studies
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Photosynthetic Processes and Mechanisms
- Keywords
- quantum coherence, Fenna-Matthews-Olson complex, photosynthetic energy transfer, physiological temperature, light-harvesting antenna, reaction center, energy landscape, energy trapping
- MeSH terms
- Electronics, Energy Transfer, Biological Evolution, Models, Biological, Photosynthesis, Quantum Theory, Rhodobacter sphaeroides, Temperature, Chlorobi
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